Business Details
36 Years
experience
Expert Metal Roofing & Sheetmetal Specialists in Detroit
Cass Sheet Metal has been a trusted leader in architectural sheetmetal design, fabrication, and installation for over 30 years. Founded in 1990 by Glenn Parvin, our Detroit-based company specializes in custom metal roofing, copper fabrication, historical building restoration, and innovative siding solutions. With a team of skilled union craftsmen and partnerships with top manufacturers like Berridge and Centria, we deliver unmatched quality for residential, commercial, and historic projects.Our expertise in standing seam metal roofing, stainless steel panels, and zinc siding has earned us recognition for landmark restorations, including the Cranbrook Copper Dome and Henry Ford Estate. Committed to old-world craftsmanship and cutting-edge technology, we serve Southeast Michigan and beyond, ensuring every project meets rigorous standards of durability and aesthetic excellence.
Services
Metal Roofing
Copper Fabrication
Historical Building Restoration
Slate-Tile Roofing
Custom Sheetmetal Fabrication
Standing Seam Metal Roofing
Stainless Steel Siding
Zinc Siding Panels
Foam Panel Siding Systems
Composite Wall Siding Panels
Details
- Year established: 1990
Highlights and features
- 30+ years of expertise in architectural sheetmetal and historical restoration
- Skilled union craftsmen with specialized certifications in metalwork
- Proven track record on landmark projects like Cranbrook Copper Dome
- Partnerships with leading manufacturers for advanced material solutions
- Full-service design/build capabilities from consultation to installation
What people say
Exceptional craftsmanship
Expertise in historical restorations
Reliable service
Quality workmanship
Dedicated team
Services
Metal Roofing
C.A.S.S. Sheetmetal specializes in durable standing seam metal roofing systems for residential and commercial properties. Using premium materials like copper, aluminum, and steel, we provide weather-tight solutions with 20-year warranties. Our team combines advanced roll-forming technology with traditional soldering techniques to ensure longevity and aesthetic precision for both new construction and replacement projects.
Copper Fabrication
Our copper fabrication services include custom domes, gutters, and architectural accents for historic and modern buildings. With in-house manufacturing capabilities and decades of experience, we create intricate components that meet exact specifications. Projects range from church steeples to iconic Detroit landmarks, ensuring each piece maintains structural integrity and historical accuracy.
Historical Building Restoration
Specializing in historical restoration, we repair and replicate original metalwork for protected structures. Our team has completed projects at the Henry Ford Estate and Cranbrook Schools, using traditional methods to match 1920s-era craftsmanship. This includes slate tile replacement, copper dome restoration, and masonry integration while maintaining modern code compliance.
Stainless Steel Siding
We install high-performance stainless steel wall panels for commercial buildings, offering durability and modern aesthetics. Recent projects include the Kasl Building at University of Michigan-Dearborn, featuring custom curved panels and seamless integration with window systems. Our fabrication shop ensures precise measurements for complex architectural designs.
Composite Wall Siding Panels
Partnering with Centria, we provide energy-efficient composite wall panels with foam insulation. These systems combine thermal performance with sleek finishes for commercial properties. Our installation team ensures proper sealing and alignment, as demonstrated in projects like the Grosse Ile High School sunshade application.
People
Glenn Parvin
President/Owner
Glenn Parvin founded CASS Sheetmetal in 1990 after 13 years in the roofing industry. With leadership roles in SMACNA and CAM, he oversees project management and strategic partnerships. His expertise in design/build solutions has driven the company's growth to 20+ employees and landmark projects across multiple states.
Questions
What types of metal roofing systems do you offer?
We provide standing seam metal roofing, copper roofing, stainless steel systems, and composite panel solutions for residential and commercial applications.
Can you restore historic metalwork on protected buildings?
Yes, our team specializes in historical restoration using traditional techniques to replicate original craftsmanship while meeting modern standards.
Do you handle both small repairs and large projects?
We accommodate projects of all sizes, from residential gutter repairs to multi-acre commercial installations and landmark restorations.
What areas do you serve?
Primarily Detroit and Southeast Michigan, with completed projects in Ohio, North Carolina, and statewide historical sites.
Are your craftsmen certified?
Our 20-30 union sheetmetal workers hold specialized certifications in soldering, roll-forming, and architectural metalwork through Local 80.
